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R. SCATES.

(No Model.) 2 Sheets-Sheet 1.

DRY AIR GLOSET.

Patented July 24, 1894.

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G. R. SGATES. DRY AIR CLOSET.

No. 523,379. Patented July 24, 1894.

Fries.

ATENT GEORGE RANDAULPH SGATES, OF KNOXVILLE, TENNESSEE, ASSIGNOR OFONE-HALF TO E. S. ROGERS, OF SAME PLACE.

DRY-AIR CLOSET.

SPECIFICATION forming part of Letters Patent No. 523,379, dated July 24,1894,

Application filed October 18, 1893. Serial No. 488,527- (No model.)

To aZZ whom it may concerm ing at Knoxville, in'the county of Knox andState of Tennessee, have invented a new and useful Dry-Air Closet, ofwhich the following is a specification.

My invention relates to a dry air or cremating closet, and has for itsobject to provide a slmple, inexpensive and efficient constructionadapted to be used in connection with dwellings, whereby the liquidexcrement is dried or conducted to an underground cistern and the solidexcrement is dried, the fumes being conducted to a chimney or exit flue,and then burned,and the novelty of the invention consists in thearrangement and relative disposition of the parts and in the means forcontrolling the various draft openlngs, outlets, 850., to promote adraft through the kiln or cremating chamber, especially when the lids ofthe stools are open, such draft, in the latter case being suppliedthrough the stool openings, whereby the escape of fumes into thebuilding is prevented.

Further objects and advantages of my invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings: Figure 1 is a vertical sectional view of a closetembodyingmy invention. Fig. 2 is a vertical section at right angles tothe plane of Fig. 1.

Similar numerals of reference refer to corresponding parts in thedrawings.

1 designates the kiln or cremating furnace, which may be of anypreferred shape, and 2 a hot air room, provided with a door or means ofingress, 3, and having inlet openings, 4., above and below the door, toadmit air, and outlet openings, 5, in the opposite wall forcommunication with the kiln or cremating furnace. The floor of the kilnis arched, as shown at 6, the same being built upon the archedsupporting bars, 7, and the bricks forming the floor are separated toform draining openings, 8. The subjacent heating chamber, 9, which isrooted by the above described arch, is provided with a centrallydepressed floor having a drain, 10, to which is connected a drain-pipe,11, communicating with a cistern, 12, and the chamber communicates withthe hot air room, 2, by means of openings, 13, arranged near the floorof the latter. Within the hot air room is placed a furnace, stove, orsimilar heating device, 14, provided with a smoke pipe, 15, whichextends longitudinally through the heating chamber, 9, parallel with theroof thereof, and communicates with a drum, 16, which is located uponthe opposite side of the kiln or crematory. An outlet opening, 17, isarranged near the floor of the heating chamber to communicate with thelower end of the said drum. The drum communicates, at its top, byahorizontal pipe, 18, with the smoke flue or stack, 19.

20 represents a flue which is formed in the rear wall of the kiln andcommunicates with the interior of .the latter by means of a verticalseries of outlet openings or vents, 21, and communicates, at its top,with the upper part of the drum through the opening, 22.

23 represents a slide, arranged in the flue 20 to close a part of theopenings or vents, 21, whereby the current of air through the kiln, asshown by the arrows in the drawings, may be caused to pass close to orthrough the contained excrement. This slide valve, 23, is provided witha handle, 24, whereby it may be operated from the vicinity of the stool.

A hinged valve, 25, is shown in connection with the openings 5 betweenthe hot air room and the kiln, and is connected, by means of the cord,chain, or other flexible device, 26, to the lids 01' covers, 27, of thestools, 28, whereby when the latter are closed said valve is open, andwhen the lids are open the valve is closed, in order that when thestools are in use there may be a draft downward therethrough, asindicated by the arrows. One of the stool lids is shown open in thedrawings to show the subjacent heating chamber, and the solid portion isretained upon the arch, exposed to the heat and current above and to theheat in the hot air room, heating chamber and drum.

The slide valve is adjusted, as the quantity of excrement accumulates,to cause the draft to pass close to the surface thereof, and after thecontents have become dried to the combustion point they may be ignited,(access being provided through the door-way 29,) and burned, theproducts of combustion escaping through the drum to the smoke flue orstack.

Various changes in the form, proportion, and minor details ofconstruction may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

Having thus described my invention, I claim- 1. In a dry-air closet, thecombination of the kiln or cremating furnace arranged beneath the stoolsand provided with an arched, perforated floor, a subjacent heatingchamber provided with a drain communicating with a waste cistern forliquid excrement, a hot air room arranged at one side of the kiln andcommunicating therewith and with said heating chamber, a heating devicearranged in said hot air room, a drum located adjacent to the oppositeside of the kiln and communicating therewith and with the heatingchamber, a smoke pipe connected to said heating device, extendinghorizontally through the heating chamber and communicating with saiddrum, and a smoke flue or stack with which the drum communicates,substantially as specified.

2. In a dry air closet, the combination of the kiln having an archedfloor, a subjacent heating chamber, a dry air room communicating byopenings, 5, with the kiln and containing a heating device having asmoke pipe which extends horizontally through the heating chamberbeneath the arched floor of the kiln, a drum with which said smoke pipecommunicates, and which in turn communicates with a smoke flue or stack,a flue being formed in the wall of the kiln, connected at its upper endwith the drum and provided with side openings into the kiln, a slidevalve arranged to close certain of the said openings to direct the draftthrough the kiln whereby it will pass close to the contained excrement,a valve arranged to close said openings 5, and lids or covers for thestools, connected to said valve, whereby when the covers are open thevalve is closed to cause a downward draft through the stools,substantially as specified.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of two witnesses.

GEORGE RANDAULPII SCATES.

Witnesses:

W. K. ANDERSON, C. II. BROWN.

